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A Model of Large-Scale Evolution of Complex Food Webs

Guill, Christian (2010):
A Model of Large-Scale Evolution of Complex Food Webs.
In: Mathematical Modelling of Natural Phenomena, pp. 139-158, 5, (6), ISSN 0973-5348, [Online-Edition: http://dx.doi.org/10.1051/mmnp/20105607],
[Article]

Abstract

A simple model of biological evolution of community food webs is introduced. This model is based on the niche model, which is known to generate model food webs that are very similar to empirical food webs. The networks evolve by speciation and extinction. Co-extinctions due to the loss of all prey species are found to play a major role in determining the longterm shape of the food webs. The central aim is to design the model such that the characteristic parameters of the niche model food webs remain in realistic intervals. When the mutation rule is chosen accordingly, it is found that food webs with a complex, biologically meaningful structure emerge and that the statistics of extinction events agrees well with that observed in the paleontological data.

Item Type: Article
Erschienen: 2010
Creators: Guill, Christian
Title: A Model of Large-Scale Evolution of Complex Food Webs
Language: English
Abstract:

A simple model of biological evolution of community food webs is introduced. This model is based on the niche model, which is known to generate model food webs that are very similar to empirical food webs. The networks evolve by speciation and extinction. Co-extinctions due to the loss of all prey species are found to play a major role in determining the longterm shape of the food webs. The central aim is to design the model such that the characteristic parameters of the niche model food webs remain in realistic intervals. When the mutation rule is chosen accordingly, it is found that food webs with a complex, biologically meaningful structure emerge and that the statistics of extinction events agrees well with that observed in the paleontological data.

Journal or Publication Title: Mathematical Modelling of Natural Phenomena
Volume: 5
Number: 6
Divisions: 05 Department of Physics
05 Department of Physics > Institute for condensed matter physics
05 Department of Physics > Institute for condensed matter physics > Statistische Physik und komplexe Systeme
Date Deposited: 26 Oct 2010 08:29
Official URL: http://dx.doi.org/10.1051/mmnp/20105607
Identification Number: doi:10.1051/mmnp/20105607
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